This is more a theoretical exercise than specific code nitty
gritty, but...
Let's say I have some code like this:
class World {
// Bunch of members and other functions
void happyDay () {
if (bCthulhuRises) {
debug(logging) {
logger.writeLog(this); // uses the class toString to give a
dump of interesting parts of the object
}
throw new Exception("We're doomed! Run you fools!");
}
}
}
I only want to access the logger object when the program is
compiled with the -debug option, so I don't want to pass it along
to the object constructor or set a member as a reference to it
(which is both tedious and pointless if not in -debug mode). The
simple solution is to make the Logger class a singleton (can D do
singletons? I presume it's possible, but I haven't really looked
into it), but is there a means in D that is considered a better
way to do this?
